Say you're a bank employee who handles money. It'd be pretty easy to just slip some off the top of each stack every day and take it home. Or arrange the softwar

Say you're a bank employee who handles money. It'd be pretty easy to just slip some off the top of each stack every day and take it home. Or arrange the software to skim some into a separate account and pull that money out often enough that the balance never gets high enough to be suspicious. Both of those things, plus many more, require daily or weekly effort. If you're out of the office, something will go amiss and you'll get caught.